Datasheet Summary
512KB SOUND CONTROLLER
GENERAL DESCRIPTION
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The SPC500A1 is a CPU based two-channel speech/melody synthesizer including CMOS 8-bit microprocessor with 69 instructions, 512K-byte ROM for speech and melody data (Speech is pressed by a 4-bit ADPCM with approx. 120 sec speech duration @ 7KHz sampling rate) and 128-byte working SRAM. It includes two Timer/Counters, 23 Software Selectable I/Os, two 8-bit current outputs D/A (or one PWM audio output) and serial interface I/O port. It provides Multi-Duty-Cycle output for remote control purposes. For audio processing, melody and speech can be mixed into one output.
It operates over a wide voltage range of 2.4V
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